Liquid dispensing device



Feb 14. 1933- R. w VAN scHYNDLE ET AL LIQUID DISPENSING DEVICE Filed Nov. 12, 1928 1 V NToR. Wwf

Patented Feb. 14, 1933 UNITED STATES PATENT OFFICE RAYMOND W. vnN scnYNnLn AND wrN'roN Yn. LANsrNG, 0F GREEN BAY, WIsooNsrN, ASsIGNoBs To VAN-LANSING NOVELTY co., or GREEN BAY, WISCONSIN LIQUrn nrsrnNsING yenvien Application led November 12, 1928.

Our invention relates to improvements in liquid dispensing devices.

Among-the objects of the invention are to provide a liquid dispensing device which may be controlled by a coin or other suitable operating device and capable of accurately dispensing the liquid; to provide a liquid dispensing device which will not drip or lose liquid after the dispensing action` is complete; to provide a dispensing device which may be coin operated and controlled and which, through the coin mechanism, cannot be made to repeat on the use of a single coin.

A further object of our invention is to provide a reservoir and dispensing pump so arranged that a dispensing pipe is directed through the reservoir to an altitude for gravity dispensation.

In the accompanying drawing, we have shown a present preferred embodiment of the invention, wherein Figure 1 shows a side elevation of a dispensing device with portions cut away to exhibit details of construction.

Figure 2 is a detail of a coin operating mechanism.

Like parts are identified by the same reterence characters throughout the several views.

The particular embodiment of our invention shown in the drawing is one wherein the liquid dispensing device is in its general outline and construction a gasoline dispenser, which we have made up in the form of a miniature lilling station pump, although it will be obvious from the description hereinafter set forth that many uses for our device in other liquid using mechanism may be found.

We provide a hollow base 10 to receive coins and hold them within the locked door 11, and a compartment 12 mount-ed thereon for the reception of a coin controlled mechanism. The top 13 of this compartment 12 is channeled at 14 to receive a circular glass reservoir 15 for the reception of liquid 16 to be dispensed. The reservoir 15 is surmounted by a cap 17 which is likewise channeled at 18 to receive the topof the reservoir. EX-

ser'iai No. 318,677.

tending between the top 1-3 'and the cap 17 1s a supporting column 19 which is hollow and threaded at either end into the body of the top 13 and cap 17 respectively, to the end that the said members 13 17 maybe drawn tightly together to press lthe 'reservoir 15 into'the channels 14 and 181t'o make liqiid tight connection. A removable head 20 lprovided with a gasket head 21 is so formed 'as to have a bayonet connection at 22 with the cap 17.

Housed within the underside of the top 13 we have provided a diaphragm pump 23, which is adapted toreceive liquid from the reservoir through a itting24-- A ball check 25 isprovided to permit flow of liquid into thel diaphragm pump and to kprevent return of liquid to the reservoir. From the topo the pump a small pipe 25eXtends upwardly through the column andthrough a ball eheck itting 26 to a dispensing pipe 27 in the cap 17 .p This dispensingpipe extends laterally to a point where it enters a funnel 28 extendmg downwardly through kthe cap and terminating ina nozzle 29.

It will be vparticularly noted that there is actually n'o mechanical c onnection between the dispensing pipe 27 and tunnel'28V since an opening to theair `must be provided at B'Olto break an otherwise perfect Siphon through the connections indicated.

Attention is likewise called to the 'fact that the dispensing pipe isnotched at "31 to prevent the ball of the ball check 26 from shutting ofi' the opening into the dispenfi'sing pipe 27 when the ball is in uppermost position.

Attention is now directed to the controlling or operatingr mechanism for the d iaphragm pump. This mechanism Ypreferably is provided for the receptionlof a coin 36, 1 which will normally drop from the coin slot into the position indicated in the drawing. In this positionfthel coin is housed within a slot in a coin-receiverl37, the top part of the slot comprising an actuator 38V-pivotally mounted at 39 and provided with anangular` ly disposed lower face 40.A The lwer part of the slotV at141 is VsubstantiallyV horizontal as indicated. .In the side wall of the coin re.-

i ceiver is an arcuate-opening 42 to permit of .them inthat position.,V` Y v Between the pump actuator`38 and the diaentry of a coin actuator 43 tobe operated by a handle 44 outside the wall of the compartment l2 andiconnected with theactuator 434 1by means of ashaft 45. U, Y Y i Normallytlie coin actuator and thehandle are in the ,position shown inthe drawing since ay lspring 46 is provided to maintain phragm 23`we provide a rod 47pivotally inf terloclred iwith the actuator and iiexibly `connected to thediaphragm at48;

The operation of our. device isfas'jfollows: A coin 36 dropped through the slot 35 will assume the position shown in the drawing, from which it may be moved forwardly in l`v the coin slot kby coinactuator 43 when the hanl edle 44 is arcuately moved upon the shaft se Y VAs the: coin 36 advances beneath'the pump actuator V38,.the actuator is raised pivotally g about its axis/39 to Vcause ,the rod 47 tom'oveA l upwardly and collapsezithel*diaphragm .-23 -iinto the recess in the top `i3. Themotion of these various'parts continues untilthe Coin. has passed beyond` the pump actuator'38 and lisv dropped into the coin .receiver in the base' s 10 behindfthe lockeddoo'r 11.V

j .of the actuator 38 is' so angularly disposed to the lfoor 4l of the coin slot that from Vthe i5() time itisinitiallyactuated-by the coin actua- Liquid that has been advanced from', uw reservoir through the'check valve 25 into` the pump is, bythe movement kabove described,

forced through the Q'small .pipe- 25', through the ball check 26,.intoA the dispensing pipe 27 j fromjgwhichfthe liquid is dispensed into the Afunnel and'through the nozzleinto aiiyreceptacle or pipe desired;

It .'will'ibev noted that the lower surface 40 torf43, the angle of incidence between the y curvedsurface of the coinand the lower sur'- V'face 40,` and Ybetweenthe ycoin and the floor 41. fis,y such thatthe' coiiijwilln'ot retract'.` It is 'therefore impossible-for a manipulator of the machine to gain through the use of one coin, more than the equivalent of one thrust of the actuator 38.-V Thelcoin will onlyadfA vancev as it is thrust bythe actuator "and nov recoil thereof canbegained through the release of theactuator 43 `or other'manipulaQv i tion of ouivdevice.' Thisifeatiire'is. described and claimed in our copendingvapplication Serial No.` 500,240, filed'Dec. 5, 1930, which application' is a divisionl of th'isapplication.

ving i to theoutlet. c

While we have shown-and described a present preferred embodiment of the invention, it is to be distinctly understood that the same is not limited thereto, but may be otherwise variously embodied within the scope of the following claims. Y y Y We claim:

' l; A liquid dispensingdevice including a y reservoir, a punipdisposed entirely beneath the reservoir, a conduit 1for,dispensing liquid from the pump `through the reservoir, and a Vdownwardlylextending dispensing nozzle for delivery of liquid by gravity.

2. A li'quiddispensing device including a reservoir,'a pump beneath the reservoir, a

conduit for dispensiinsgj liquid ,from the pump thro'ugh thel reservoir, anda downwardly eX- f tending dispensing nozzle for delivery of i liquid by` gravity, the" connection between thed conduit and the nozzle' providing a normal-ly" f by siphonicV delivery VIof liquid throughk said fitting is prevented. *f l 3. A reservoir for liquid,afpipe extendingf 50 4. A reservoir for liquid, a dispensing de-r i vicefor liquid connectedwiththe reservoir, a pipe for delivering the liquid, saidpipe passing upwardly through the reservoir, and

draining of the reservoir.

5. Liquid dispensing apparatustcomprising a Hi'eservoir, anVfvr imperforate diaphragm pump inV communicationv with the reservoir,

a delivery outlet,"and meansdispesed entirely beneath the reservoir for compressing 'the` diaphragm forjdelivering liquid from ,the

reservoir'to theoutlet. l i Y 6. Liquid dispensing apparatus, comprising a. reservoir, an imperforate diaphragm, pump in communication `with the reservoir,

a check valve preventing liquid-flow from the p'ump into the reservoir, a delivery outlet, and

means disposed entirely beneathy thereservoir forcompres'sing"thediaphragm for deliveriquid on the;pumpsideof check valve 7., *Licliiid dispeiising;apparatus',` comprising a reservoir, adiaphragm puinpIin-co'mmunication with the reservoira delivery -out-A let from the pump extending through but Inot in communication withlthe reservoirfand means vdisposed'eiitirely beneath the reservoir for compressing jthe diaphragm for delivering' liquid through such outlet. w-

7 Y 1 l 8; Liquiddispensing apparatus,comprisyableed hole ata high point in said pipe inaccessible from without to prevent siphoiii@ ing a reservoir, a delivery outlet, means for delivering liquid from the reservoir to theV outlet, and means between such first mentioned means and the outlet providing at all times an inaccessible air bleed to prevent siphoning of liquid through the outlet.

9. Liquid dispensing apparatus, comprising a reservoir, a diaphragm pump in communication with the reservoir, a downwardly extending delivery conduit in communication with the pump, and means in the delivery conduit to prevent siphoning of liquid therethrough.

10. Liquid dispensing apparatus, comprising a. reservoir, a pump in communication therewith, a delivery conduit from the pump passing through the reservoir, and means in the delivery conduit disposed interiorl of the apparatus and inaccessible from wit out to prevent siphoning of liquid therethrough.

11. Liquid dispensing apparatus, comprising a reservoir, a pump disposed entirely beneath the reservoir and in communication therewith, a delivery conduit in communication with the pump and extending upwardly therefrom through the reservoir, and a check valve in the delivery conduit near the top thereof for preventing liquid therein from draining bach into the pump after operation` of the pump.

l2. Liquid dispensing apparatus, comprising a reservoir, a pump in communication with the reservoir, a check valve preventing liquid flow from the pump into the reservoir, a delivery conduit in communication with the pump and extending generally upwardly therefrom through the reservoir, a check valve in the delivery conduit for preventing liquid therein from draining back into the pump after operation of the pump, and means disposed entirely beneath the reservoir for operating the pump.

13. Liquid dispensing apparatus, comprising a reservoir, a pump in communication with the reservoir, a delivery conduit in communication with the pump and extending generally upwardly therefrom through the reservoir, a gravity discharge nozzle in communication with the conduit, and means between the conduit and discharge nozzle disposed interiorly of the apparatus and inaccessible from without to prevent siphoning of liquid through the nozzle.

14. Liquid dispensing apparatus, comprising a reservoir, a diaphragm p'ump beneath and in communication with the reservoir, a delivery conduit in communication with the pump and extending generally upwardly therefrom through the reservoir, a gravity discharge nozzle in communication with the conduit, and means disposed entir-ely beneath the reservoir for operating the pump.

RAYMOND W. VAN SCHYNDLE. VINTON D. LANSING. 

